Steam-boiler.



I Patented Aug. l2, |902l A J. PLATKO. v

STEAM BolLER. (Application led. Jan. 27, 1902 Nn. 707,002. Patented Aug.'l2, |902.

J. PLATKO.

STEAM Bumm.v

(Application led Jan. 27, 1902,) (No Model.) 2 Sheets-Sheet 2.

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UNITED 'STATES l Aarmar Prien.

JOI-IN PLATKO, OF NEVTON, PENNSYLVANIA, ASSIGNOR OF ONE-FOURTH TO ERTZ da JOSEPH, OF BRADFORD, PENNSYLVANIA, A FIRM.

steam-Bowne;

SPECIFICATION forming part of Letters Patent N 0. 707,002, dated August 12, 1902. Application filed January 9.7, 1902. Serial No. 91.504. (No model.)

.To @ZZ whom it may concern.-

Be it known that I, JOHN `PLATKO, a citizen of the United States, residing at Newton, in the county of McKean and State of Pennsylvania,haveinventednewandusefulImprove-- ments in Steam-Boilers, 'of'which the following is a specification;

My invention relates toY improvements in steam-boilers, and more particularly pertains'- 1o to that class kno'wnas tubular boilers. The object of my invention is to provide a boiler in which a portion of the steam is re' introduced into the boiler `for the purpose of;

aiding in the heating ofthe water therein.

Another object of my invention is to pro-` vide a boiler which after once thoroughly fired will require a smaller amount of fuel to keepV the required amount of pressure therein.

A still further object of my invention isv to zo provide a simple, cheap, and more effective boiler to accomplish the above results.

In the accompanying drawings, Figure l is perspective view of my steam-boiler. Fig. 2 is a vertical longitudinal sectional view. Fig.

z5 3 is a vertical transverse sectionalview.

Referring now to the drawings, A represents the ordinary boiler, which is preferably cylindrical in shape and provided with the ordinary longitudinally-extending lire-tubes a; but, as shown in the drawings, the said tubes are arranged on each side of the center,

leaving a longitudinally-extending vertical` the boiler to the rear end b, and from there it passes back through the tubes ct to the forward end of the boiler. The said end of the boiler is provided with a space d, which is adapted to receive the smoke from the lines and convey it upward to a smoke-stack d', through which the smoke is discharged from 5o the furnace.

The boiler A is provided on its upper portherein.

tion intermediate the ends with a steamdoine E, which is adapted to receive the steam as it is generated in the boiler. In communication with the upperportion ofsaid dome E is a vertically-disposed pipe e, which carply-pipe to the apparatus or device for which 6o thesteam is toy be used. Connected to the vertically-arranged pipe e below the horizontally-arranged pipe f is a second pipe g, which 4extendsoutloeyond theside of the boiler and down, as shown at h, andthen backward toward the center of the forward end of the boiler, as shown at i. The end of said pipe extends throughout the space formed at the forward endof the boiler and thence through the end of the boiler. Connected to said pipe, 7o

within theboiler, is a vertically-arranged coil G, which extends back and forth within the space a left between the air-fines on either side. The end of said coil extends out through the forwardend of the boiler at its lower end and carries a stop-cock j for the purpose of draining it should there be any condensation The horizontal portion t' of the pipe is provided with a stop-cock II,which is adapted to allow the steam to pass within the coil 8o in the boiler or not, as desired. The said pipe is also provided with a gage I, which is located between the stop-cock H and the con nection with the end of the boiler, whereby the pressure within the coil can be readily seen and regulated by the stop-cock H regardless of the pressure within the boiler.

The boiler is provided with the ordinary safety-valve, water-supply pipes, and drainpipes, all for the purpose known to those 9o skilled iu the art, and it is not necessary to `show or describe them.

By the above-described construction it will be readily seen that after the boiler has been fired and the desired amount of steam is generated, as indicated onthe gage F, by turning -the cock IIsteam is admitted to the coil G,

which is arranged within the portion of the boiler holding the water, and the water will be kept at a higher temperature bya smaller roo amount of fuel, as the surplus steam is used in the above-described manner.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent, is-

1. In a steam-boiler, the combination with a casing, of air-fines passing therethrough, a horizontallyextending vertically arranged coil between the air-iiues and the upper end thereof having direct communication with the casing and the lower end with the outside atmosphere, substantially as described.

2. In a steam-boiler, the combination with a casing, of air-fines arranged therein and having a central open space, a horizontallyextending vertically-arrangerl coil with said open space and the upper end of said coil.

having direct communication with the casing and the lower end with the outside atmosphere, substantially as described.

3. In a steam-boiler, the combination with a casing, of air-fines extending therethrough on each side, and a coil within the casing between the fines and having one end in communication with the casing and the opposite end with the outside atmosphere, substantially as described.

4. In a steam-boiler, the combination with a casing, of asteam-dome carried by the upper portion thereof, a pipe in communication therewith and having a steam-gage, said pipe having its opposite end entering the end of the casing, and a coil with the casing having one end connected to said pipe and the opposite end in communication with the outside atmosphere, substantially as described.

5. In a steam-boiler, the combination with a casing, of a steamdome carried by the upper portion of said casing, re-tubes carried by each side of said casing, a coil within the casing between the lire-tubes, and having its lower end in communication with the outside 4o atmosphere, a cock for closing said end, a pipe in communication with said dome, and connected to the upper end of said coil, a cock intermediate the coil and the dome, and a gage on each side of said cock, whereby the pressure in the boiler and the pressure in the coil is readily determined, substantially as described.

6. In a steam-boiler, lthe combination with a casing, of fire-tubes carried by said casing, 5o

a coil within the casing and having its lower end in communication with the outside atmosphere, a pipe in communication with the casing and the upper end of the coil, a cock intermediate theV coil and the casing, and a gage on each side of said cock, whereby the pressure in the casing and the coil is readily determined, substantially as described.

7. In a steam-boiler, the combination with a casing, fire-tubes carried by each side ot' 6o said tube, a horizontally-extending verticallyarranged coil within the casing between the fire-tube and having its lower end in communication with the outside atmosphere, a pipe in communication with thecasing and the up- JOI-IN PLATKO.

Witnesses:

N. B. PARKER, kHERMAN 1I. NORTH'. 

